A new type of device appears to accumulate charge according to the expression q(t) =
Chapter 2, Problem 19(choose chapter or problem)
A new type of device appears to accumulate charge according to the expression \(q(t) = 10t^2 −22t\ mC\) (t in s). (a) In the interval \(0\ \leq\ t\ <\ 5\ s\), at what time does the current flowing into the device equal zero? (b) Sketch q(t) and i(t) over the interval \(0\ \leq\ t\ <\ 5\ s\).
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